Spindle and support therefor



(No Model.) l

T. H. LOGAN.

SPINDLE AND SUPP-ORTTHEREFOR.

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Unire Srafrns Aranci THOMAS H. LOGAN, OF LOVELL, ASSIGNOR OF TlVO-THIRDSTO GEORGE A. BYAM, OF CHELMSFORD, AND LARKIN T. TRULL AND JEREMIAH E.HELME, BOTH OF LOVELL, MASSACHUSETTS.

SPINDLE AND SUPPORT THEREFOR.

SPECIFICATION forming part of Letters Patent No. 345,157, dated July 6,1886. Application filed March Q0, 1F86. SerialNo.195,.l43l (No model.)

ticularly to such devices, and contrivances inwhich the s pindle isflexibly mounted in its supports for the purpose of enabling it toaccommodate itselt' in its rotation to any unevenness of strain thereon.

The invention has for its object to so construct the cusliioning-supportfor the bolster as to give to the spindlethe most natural freedomofmotion in nding its true center ot' rotation.

It is also the object of the invention to so construct the means forsupporting the bolster thatjars or vibrations given to the bolsterrailshall not be communicated or fully communicated to the spindle.

It is also the object ot' the invention to provide improved means foradjusting the devices which permit the spindle to yield laterally in itsrotation, so as to render them more or less rigid, and to permit of thisadjustment being made while the spindle is in operation.

-It is also the object of the invention to incidentally improve theSpindle and its supports in carrying out the above-recited objects.

To the foregoing ends my invention consists in the inilirovementshereinafter described, and subsequently set forth in the claims.

Of the drawings hereto annexed and forxning a part of thisspecification, Figure l represents a longitudinal vertical section ofrny invention, certain parts being shown in elevation. Fig. 2 representsa side elevation of the bolster-case, and Fig. 3 alike elevation ofthebolster.

Similar letters of reference indicate similar parts in all of thegures.

A designates the socket or base, being shown as provided with a chamber,a, and a threaded shank, a', adapted to pass through the rail B, the nutI), upon the end of the shank a', serving to keep the socket or basefirmly connected to the rail. The chambcrc is shown as slightly taperingl'or a short distance from the crown or top end ot' the socketor base A,and therealter it is continued in a straight line to its lowerextremity.- The bolster-case C is formed with tapered and straight lowerend, which corresponds with and extends down to the chamber c in thesocket A, the straight lower portion ot' the said bolsteucase beingthreaded to receive thereon a sleeve or collar, D, of cork, rubber, orother analogous yielding material, which is adapted to lit quite snuglyin the chamber c. As shown in the drawings, the lower end of the saidbolster-case C is made hollow, and a portion ot' it is threadedtoreceive the threaded shank ol' a screw, d, said screw d holding in placea washer, d', which bears against the lower' end of the bolster-case C',and the yielding collar or sleeve D serving to keep the lat-ter moresecurely upon the bolster-case. The threaded periphery ofthe socket orbase A receives upon ita cap, E, which, when screwed thereon, bears uponthe upper end ot' the collar or sleeve D, which projects slightly abovethe crown of the socket or base A, a depression ot this cap E serving toforce or compress the collar or sleeve D further into the chamber a,giving greater rigidity to the bolster-case and consequently allowing ofless gyration of the spindle S in its revolution. A'n elevationof thecap E lessens the pressure upon the collar or sleeve D, and permitsgreater freedom of lateral or vibratory movement of the bolster-case,allowing itto yield to accommodate itself to any unequal load or strainupon the spindle S. The bolster F, held, as nsual,in the case G byfrietion, is provided withv channels or passages f in its periphery madein the direction of its length, down which and through a hole, h, in thebolster the oil or other lubricant passes to lubricate the spindle S.This bolster F is of such length as to leave a space, s, at the top anda space, s', at the bottom, the space at the top forming a substantialoil-cup at that point and preventing the overliow of the oil orlubricant over the top of the bolster-case, as would be the case if thebolster and bolster-case were made/flush at their upper ends. The spaces at the bottom allows for the placement of a l is allowed an easy andnatural lateral motion step, si, shown as provided, preferably, with araised center whereon the spindle S revolves. This step S2 is madeadjustable by the setscrew g in the bolster-ease C, the said set-screwserving to permit the step to be adjusted to the spindle when the samebecomes loosened in the bolster by friction therewith. The bolster-easeE is provided with a bearing, N, preferably eastintegral tl1erewith,andto which one end of an arm or finger, N', is fnlcrumed or pivoted, theother end of the said arm being shown as provided with a lip, n, whichin practice is normally held above the upper face of the whirl \V bytheaid of a fiat spring, a', fastened to the bearing N, and upon which thelower end of the finger N rests. By this device the whirl W' and thespindle S, which are held together frietionally at the point P, as isusual, are prevented from being withdrawn when dofiing7 or removing thebobbin. By placing the' elastic cushion for supporting the bolsterentirely below the spindlestep,provis ion is made for allowing thespindle to have the most natural motion when subjected to an uneven loador uneven strain from the band on the whirl or pullof the yarn from thetraveler or from a warped or otherwise imperfect bobbin on the spindlein finding its true ceuter of rotation. Again, by making the entiresupport intermediate of the base or bolsterrail and bolster of ayielding or cushioning character, jars and the like given to thebolster-rail will not readily be communica-ted to the spindle, but betaken up by the cushion or yielding support, thus tending lo securesteadiness in the motion ofthe spindle. Furthermore, by arranging thedevices for adjusting the rigidity of the cushioning means above thebolsterA rail and outside of the base and bolster, such adjustment canreadily be made while the spindle is in operation and without removingor disturbing the operative position of any ofthe parts.

It is obvious that changes may be made in the form and arrangement ofthedevices consttutiug my improvements, all within the limits ot'mechanical skill, without departing from the spirit of my invention.

l. The combination, with the spindle, its bolster, bolster-case, andstep, of the bolsterbase,and devices, substantially as set forth,entirely ofa yielding or cushioning character intermediate of thebolster case and base and entirely below the step, whereby the spindlein finding its true center of rotation when subjected to an unevenloador strain, substantially as hereinbefore set forth.

2. The combination, with the spindle, its bolster, and bolster-case, ofthe bolster-base, devices, substantially as set forth, intermediateofthe bolster case and base, of a cushioning or yielding characterthroughout, and devices for adjusting the degree of rigidity of suchcushioning or yielding devices, as set forth.

3. The combination, with the spindle, its bolster, bolster-case, andstep. of the bolsterbase, and devices, substantially as set forth,entirely of a yielding or cushioning character intermediate of thebolster case and base and below the step, and devices, substantially asdescribed, for adjusting the degree of rigidity of such yielding orcushioning devices, as set forth.

4."l`hc combination, with the spindle, its bolster, bolster-ease, andstep, of the base A, the yielding collar or thimble D intermediate ofthe bolster-case, and base-screw d, washer d', and adjusting-cap E, asset forth.

5. The combination` with the spindle and its bolster, 'of the bolstercase, base, devices, substantially as set forth, intermediate of thebolsterl ease and base, of a cushioning or yielding characterthroughout, and devices, as set forth, outside of the bolster andbolster-case, whereby the degree of rigidityof said cushioning oryielding devices may be readily adjusted while the spindle is inyoperation and withoutremoving any of the parts, as set forth.

l6. The bolstercase and bolster, the said bolster-ease having its lowerend partially tapered and partially straight, the straight portion beingprovided with an external and internal thread, the external threadreceiving upon it a sleeve or collar composed of yielding material andthe internal thread receiving the threaded portion of a screw, combinedwith said sleeve or collar and screw, and a washer held in place by thesaid screw, and the threaded socket or base, and a cap for holding thesaid bolster-ease firm with relation to said socket or base,substantially as described.

In testimony whereofI have signed'my name to this specification, in thepresence of two subseribin g wit-nesses,this 13th day of MarclnlSSG.

THOMAS H. LOGAN.

Titnessesz JOHN J. PICKMAN, GEORGE XV. PooRE.

IOC

